For this age group, the abortion rate hit a high of 41 abortions per 1000 women in 2003, which is 20 more than the latest figure of 21 per 1000 women in 2016.

There has also been a steady drop in the number of 15 to 19-year-old women having abortions.

Family Planning chief executive Jackie Edmond said having good access to long-acting and reversible contraception, such as the contraceptive implant and intrauterine device (IUD), is a large factor in why the number of abortions have declined.

She said these contraceptives are reliable and don't rely on people's actions for them to work, like condoms and the contraceptive pill do.

Family Planning is hopeful more people are getting education, as well as hoping more people are delaying their first time having sex, Ms Edmond said.

Other countries are also showing a decrease in abortions on an annual basis, she said.

Family Planning is calling for the government to subsidise the contraceptive implant and IUD, as well as promoting an increase in comprehensive sex education in schools.